Mixed dementia

Mixed dementia has characteristics of both Alzheimer’s disease and vascular dementia. Researchers don't know exactly how many older adults currently diagnosed with a specific type of dementia actually have mixed dementia, but autopsy studies indicate that the condition may be significantly more common than previously realized. Autopsy studies play a key role in shedding light on mixed dementia because scientists can't yet measure most dementia-related brain changes in living individuals.

The concept of mixed dementia is clinically important because the combination of the two diseases may have a greater impact on the brain than either by itself.


  • May follow a pattern similar to either Alzheimer’s or vascular dementia or a combination of the two.
  • Some experts recommend suspecting mixed dementia whenever a person has both evidence of cardiovascular disease and dementia symptoms that get worse slowly.


Maintaining a lifelong heart-healthy lifestyle could help prevent mixed dementia. It may also help delay or prevent progression of symptoms in older adults.

Source: Alzheimer’s Association www.alz.org

Last Updated: 08/26/2018